a-a a-b a-i a-q aaa aab aai aaq aar aay ab- aba abb abi abq abr aby ai- aia aib aii aiq air aiy aqa aqi aqr ar- ara arb ari arq arr ary ay- aya ayi ayr baa bab bai baq bar bay bba bbb bbi bbq bbr bby bi- bia bib bii bir biy bra brb bri brq brr bry by- bya byi byq byr ia- iaa iab iai iaq iar iba ibb ibi ibr iby iia iib iii iir iqa ir- ira irb iri irq irr iry iya iyr iyy qaa qar qba qbq qir qqq qra qrb qri ra- raa rab rai raq rar ray rba rbb rbi rbr ria rib rii riq rir riy rra rrb rri rrq rrr ry- rya ryr ryy yaa yab yai yar yay ybi ybr yby yii yiq yir yqb yqr yra yyb yyy